Home / 119,713.61-165,205.85-66,000.53

Finding the Fourth Proportional to 119,713.61, 165,205.85 and 66,000.53

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Solution

The fourth proportional to 119,713.61, 165,205.85 and 66,000.53 is: 91,081.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,713.61 : 165,205.85 = 66,000.53 : x
  2. Step 2: Convert to fraction form
    119,713.61/165,205.85 = 66,000.53/x
  3. Step 3: Cross multiply
    119,713.61x = 165,205.85 × 66,000.53
  4. Step 4: Simplify right side
    119,713.61x = 10,903,672,503.07
  5. Step 5: Solve for x
    x = 10,903,672,503.07/119,713.61
  6. Step 6: Final answer
    x = 91,081.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.